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LibWeb/CSS: Absolutize grid-related StyleValues

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Sam Atkins 2025-11-18 15:25:03 +00:00 • committed by Tim Ledbetter
parent 597fe8288c
commit 7de17dce9d
Notes: github-actions[bot] 2025-11-19 23:47:02 +00:00
12 changed files with 161 additions and 26 deletions
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75
Libraries/LibWeb/CSS/GridTrackSize.cpp
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@ -1,6 +1,7 @@
/*
* Copyright (c) 2022, Martin Falisse <mfalisse@outlook.com>
* Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -110,6 +111,41 @@ String GridSize::to_string(SerializationMode mode) const
return m_value.visit([mode](auto const& it) { return it.to_string(mode); });
}
GridSize GridSize::absolutized(ComputationContext const& context) const
{
auto absolutize_length_percentage = [&context](LengthPercentage const& length_percentage) -> Optional<LengthPercentage> {
if (length_percentage.is_length()) {
auto length = length_percentage.length().absolutize(context.length_resolution_context.viewport_rect, context.length_resolution_context.font_metrics, context.length_resolution_context.root_font_metrics);
if (length.has_value())
return length.release_value();
return {};
}
if (length_percentage.is_calculated())
return LengthPercentage::from_style_value(length_percentage.calculated()->absolutized(context));
return {};
};
return m_value.visit(
[&](Size const& size) -> GridSize {
if (size.is_length_percentage()) {
if (auto result = absolutize_length_percentage(size.length_percentage()); result.has_value())
return Size::make_length_percentage(result.release_value());
}
if (size.is_fit_content() && size.fit_content_available_space().has_value()) {
if (auto result = absolutize_length_percentage(size.fit_content_available_space().value()); result.has_value()) {
return Size::make_fit_content(result.release_value());
}
}
return GridSize { size };
},
[](Flex const& flex) {
return GridSize { flex };
});
}
GridMinMax::GridMinMax(GridSize min_grid_size, GridSize max_grid_size)
: m_min_grid_size(move(min_grid_size))
, m_max_grid_size(move(max_grid_size))
@ -127,6 +163,14 @@ String GridMinMax::to_string(SerializationMode mode) const
return MUST(builder.to_string());
}
GridMinMax GridMinMax::absolutized(ComputationContext const& context) const
{
return GridMinMax {
m_min_grid_size.absolutized(context),
m_max_grid_size.absolutized(context),
};
}
GridRepeat::GridRepeat(GridRepeatType grid_repeat_type, GridTrackSizeList&& grid_track_size_list, size_t repeat_count)
: m_type(grid_repeat_type)
, m_grid_track_size_list(move(grid_track_size_list))
@ -162,6 +206,15 @@ String GridRepeat::to_string(SerializationMode mode) const
return MUST(builder.to_string());
}
GridRepeat GridRepeat::absolutized(ComputationContext const& context) const
{
return GridRepeat {
m_type,
m_grid_track_size_list.absolutized(context),
m_repeat_count,
};
}
ExplicitGridTrack::ExplicitGridTrack(Variant<GridRepeat, GridMinMax, GridSize>&& value)
: m_value(move(value))
{
@ -174,6 +227,13 @@ String ExplicitGridTrack::to_string(SerializationMode mode) const
});
}
ExplicitGridTrack ExplicitGridTrack::absolutized(ComputationContext const& context) const
{
return m_value.visit([&](auto const& it) {
return ExplicitGridTrack { it.absolutized(context) };
});
}
String GridLineNames::to_string() const
{
StringBuilder builder;
@ -239,4 +299,19 @@ void GridTrackSizeList::append(ExplicitGridTrack&& explicit_track)
m_list.append(move(explicit_track));
}
GridTrackSizeList GridTrackSizeList::absolutized(ComputationContext const& context) const
{
GridTrackSizeList result;
for (auto const& item : m_list) {
item.visit(
[&result, &context](ExplicitGridTrack const& track) {
result.append(track.absolutized(context));
},
[&result](GridLineNames names) {
result.append(move(names));
});
}
return result;
}
}